The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2011
Filed:
Jul. 31, 2006
Andrew J. Wardrop, Lakeville, MN (US);
Stephen W. Fuchs, Victoria, MN (US);
Andrew J. Wardrop, Lakeville, MN (US);
Stephen W. Fuchs, Victoria, MN (US);
General Dynamics Advanced Information Systems, Inc., Fairfax, CA (US);
Abstract
An apparatus and method for controlling the communication frequencies of a software controlled radio by using GPS to calibrate one or more local oscillators and compensating within the digital radio processing for the local oscillator inaccuracies. The apparatus and method receives and transmits radio frequency signals and includes an oscillator; a frequency monitor adapted to measure the frequency of the oscillator; a numerically controlled oscillator; and a computer adapted to receive the frequency measurement of the oscillator from the frequency monitor, to calculate an error associated with the oscillator, and to calculate a numerically controlled oscillator setting based on the calculation of the error associated with the oscillator; the numerically controlled oscillator adapted to receive the numerically controlled oscillator setting from the computer.